Mingling means mixing with others or being together in a casual way.
When people are at parties, festivals, or other social events, they often like to mingle with each other. This can mean standing around and chatting with someone you don't know well, or dancing with friends. Some people even use the word "mingling" when describing meetings where colleagues from different departments get together to talk about projects and share ideas - it's a chance for them to mix and get to know one another better.
To intermix; to combine or join, as an individual or part, with other parts, but commonly so as to be distinguishable in the product
A mixture; a blending.
